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#!/usr/bin/env bash
# Wraps aursync command to mount an amazon s3 bucket which contains a repository
cfg_name=reposync.conf
cfg_file="${REPOSYNC_CONFIG:-/etc/xdg/$cfg_name}"
cfg_file_system="$cfg_file"
local_repo="$HOME/.cache/reposync"
do_rsync="rsync -av --append"
set -uo pipefail
trap 's=$?; echo "$0: Error on line "$LINENO": $BASH_COMMAND"; exit $s' ERR
mkdir -p "$local_repo"
if [[ ! -f $cfg_file ]]
then
cfg_file="${XDG_CONFIG_HOME:-$HOME/.config}/$cfg_name"
if [[ ! -f $cfg_file ]]
then
echo "Missing config file $cfg_file_system and $cfg_file"
exit 1
fi
fi
source "$cfg_file"
exit_cmd=""
defer() { exit_cmd="$@; $exit_cmd"; }
trap 'bash -c "$exit_cmd"' EXIT
repo="$(mktemp -d)"
defer "rmdir '$repo'"
s3fs "${bucket}" "$repo" -o "nosuid,nodev,default_acl=public-read,url=$bucket_url,nomultipart"
defer "fusermount -u '$repo'"
remote_repo="$repo/${repo_path}"
mkdir -p "${remote_repo}"
echo "Syncing remote repo to local"
echo "$remote_repo/ -> $local_repo/"
$do_rsync "$remote_repo/" "$local_repo/"
echo "Ensuring database"
db_local_name="${repo_name}.db.tar.gz"
db_remote_name="${repo_name}.db"
files_local_name="${repo_name}.files.tar.gz"
files_remote_name="${repo_name}.files"
(
cd "$local_repo"
# remove all existing db files
rm -f "$db_remote_name"*
rm -f "$files_remote_name"*
for pkg in *.pkg.tar.xz
do
if [[ ! -f "${pkg}.sig" ]]
then
echo "Signing $pkg"
gpg --output "${pkg}.sig" --detach-sign "$pkg"
fi
echo "Adding $pkg"
repo-add "$db_local_name" "$pkg"
done
# generate new signatures
rm -f "${db_local_name}.sig"
gpg --output "${db_local_name}.sig" --detach-sign "$db_local_name"
rm -f "${files_local_name}.sig"
gpg --output "${files_local_name}.sig" --detach-sign "$files_local_name"
)
echo "Performing system update"
sudo pacman -Syu
echo "Performing repository sync"
aursync --sign --repo "$repo_name" --root "$local_repo" -u $@
(
cd "$local_repo"
# copy newly generated database files to their remote location
mv "$db_local_name" "$db_remote_name"
mv "$files_local_name" "$files_remote_name"
mv "${db_local_name}.sig" "${db_remote_name}.sig"
mv "${files_local_name}.sig" "${files_remote_name}.sig"
# remove all the extras
rm -f "${db_local_name}"*
rm -f "${files_local_name}"*
)
echo "Syncing local repo to remote"
echo "$local_repo/ -> $remote_repo/"
$do_rsync --delete-after "$local_repo/" "$remote_repo/"
$do_rsync -c \
"${local_repo}/${db_remote_name}" \
"${local_repo}/${db_remote_name}.sig" \
"${local_repo}/${files_remote_name}" \
"${local_repo}/${files_remote_name}.sig" \
"$remote_repo/"
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